Finding the Fourth Proportional to 72,727.83, 100,365.66 and 40,464.99
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Solution
The fourth proportional to 72,727.83, 100,365.66 and 40,464.99 is: 55,842.38
Step by Step Solution
- Step 1: Write the proportion equation
72,727.83 : 100,365.66 = 40,464.99 : x - Step 2: Convert to fraction form
72,727.83/100,365.66 = 40,464.99/x - Step 3: Cross multiply
72,727.83x = 100,365.66 × 40,464.99 - Step 4: Simplify right side
72,727.83x = 4,061,295,428.24 - Step 5: Solve for x
x = 4,061,295,428.24/72,727.83 - Step 6: Final answer
x = 55,842.38
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.